shells on interior solid faces

Altair Forum User

Hi, can anyone tell me how to create shells on all solid faces including interior ones? There used to be a plugin to be downloaded for that purpose. Is that still the case and where would I find that? Thanks in advance.

Sanjay Nainani_20973

Hello,

 

To extract shells from 3D solid elements go to 'Tools>>Faces'. Here select the component and click 'find faces'. This will extract the 2D elements and place them in a new component.

 

Thankyou

Q.Nguyen-Dai

Altair Forum User said:

Hello,

 

To extract shells from 3D solid elements go to 'Tools>>Faces'. Here select the component and click 'find faces'. This will extract the 2D elements and place them in a new component.

 

Thankyou

 

Your method does NOT create interior solid faces.

Sanjay Nainani_20973

yes it does. you need to select 'elements' from the drop down.

 

<?xml version="1.0" encoding="UTF-8"?>

 

 

Please refer the attached example:

This is a hollow cube tetra meshed.

<?xml version="1.0" encoding="UTF-8"?>

 

 

when you use the suggested option it will extract 2D shell elements as shown below.

<?xml version="1.0" encoding="UTF-8"?>

 

Thankyou 

tinh

Mr Q.NGUYEN-DAI wants to say about interior faces, not boundary faces

I have a templex to generate it, tcl can do also but may be slow. I will share later

Ansa has this function but hm not yet

Altair Forum User

2 clicks in ANSA.

tinh

Hi,

a script to create interior faces is like this:

You can save it to a file, then bind it with a user defined toolbar button, then just 1-click to get faces, not 2 !

 proc ::p_CreateInteriorFaces args {     if {[string match -nocase display* $args]} {       *createmark elems 1 displayed     } else { 	  *createmarkpanel elems 1 'Select 3d elems:'     }     if {[hm_marklength elems 1]==0} return 	*createmark elems 2 'by config' tetra4 	*markintersection elems 2 elems 1 	set Buf *ELEMENT_SHELL\n 	set i 0 	set ElemList {} 	if {[hm_marklength elems 2]} { 		eval lappend ElemList [hm_getmark elems 2] 		set ElemNodes [join [hm_getvalue elems mark=2 dataname=nodes]] 		foreach {n1 n2 n3 n4} $ElemNodes { 			append Buf '[incr i],CompId,$n1,$n2,$n3\n' 			append Buf '[incr i],CompId,$n1,$n2,$n4\n' 			append Buf '[incr i],CompId,$n2,$n3,$n4\n' 			append Buf '[incr i],CompId,$n3,$n1,$n4\n' 		} 	} 	*createmark elems 2 'by config' penta6 	*markintersection elems 2 elems 1 	if {[hm_marklength elems 2]} { 		eval lappend ElemList [hm_getmark elems 2] 		set ElemNodes [join [hm_getvalue elems mark=2 dataname=nodes]] 		foreach {n1 n2 n3 n4 n5 n6} $ElemNodes { 			append Buf '[incr i],CompId,$n1,$n2,$n3\n' 			append Buf '[incr i],CompId,$n4,$n5,$n6\n' 			append Buf '[incr i],CompId,$n1,$n2,$n5,$n4\n' 			append Buf '[incr i],CompId,$n2,$n3,$n6,$n5\n' 			append Buf '[incr i],CompId,$n3,$n1,$n4,$n6\n' 		} 	} 	*createmark elems 2 'by config' hex8 	*markintersection elems 2 elems 1 	if {[hm_marklength elems 2]} { 		eval lappend ElemList [hm_getmark elems 2] 		set ElemNodes [join [hm_getvalue elems mark=2 dataname=nodes]] 		foreach {n1 n2 n3 n4 n5 n6 n7 n8} $ElemNodes { 			append Buf '[incr i],CompId,$n1,$n2,$n3,$n4\n' 			append Buf '[incr i],CompId,$n5,$n6,$n7,$n8\n' 			append Buf '[incr i],CompId,$n1,$n2,$n6,$n5\n' 			append Buf '[incr i],CompId,$n2,$n3,$n7,$n6\n' 			append Buf '[incr i],CompId,$n3,$n4,$n8,$n7\n' 			append Buf '[incr i],CompId,$n4,$n1,$n5,$n8\n' 		} 	} 	if {$i} { 		eval *createmark elems 1 $ElemList 		*findfaces elems 1 		if {[hm_entityinfo exist comps ^interior_faces -byname]} { 			*createmark elems 1 'by comp name' ^interior_faces 			if {[hm_marklength elems 1]} {*deletemark elems 1} 		} else { 			*collectorcreateonly comps ^interior_faces '' 4 		} 		set Buf [string map [list CompId [hm_getentityvalue comps ^interior_faces id 0 -byname]] $Buf] 		set fpt [open interior_faces.k w] 		puts $fpt $Buf 		close $fpt 		*createstringarray 2 'LsDyna ' 'Keyword971 ' 		*feinputwithdata2 '#ls-dyna\\dynakey' interior_faces.k 0 0 0 0 0 1 2 1 0 		*createmark elems 1 'by comp name' ^interior_faces 		*createmark elems 2 		*elementtestduplicates elems 1 2 2 		if {[hm_marklength elems 2]} {*deletemark elems 2} 		*createmark elems 1 'by comp name' ^interior_faces ^faces 		*createmark elems 2 		*elementtestconnectivity elems 1 2 2 		if {[hm_marklength elems 2]} {*deletemark elems 2} 		*facesdelete 	} 	*clearmarkall 1; *clearmarkall 2 } #example: create interior faces for displayed 3d elems ::p_CreateInteriorFaces displayed

 

Altair Forum User

Altair Forum User said:

You can save it to a file, then bind it with a user defined toolbar button, then just 1-click to get faces, not 2 !

it was metaphor/emoticons/default_biggrin.png' srcset='/emoticons/biggrin@2x.png 2x' title=':D' width='20' /> i have been using BETA CAE for a long time, i really like it.=) But in my new job i have HW products.)

But i will test your script later=)

thanks.)

Altair Forum User

hello, @tinh!

i have added your tool to user botton 

but i didn't choose elements. is it normaly?

and i want to ask you.

how to move this tools to user botton. it will be conveniently to work.)

when i work with mesh it's uncomfortable to switch between geom/2dmesh/tools.

thanks.

<?xml version="1.0" encoding="UTF-8"?><?xml version="1.0" encoding="UTF-8"?><?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>

tinh

Hi

Please remove 'displayed' at the last line. Then it will prompt you to select elems

 #example: create interior faces for  3d elems by user selection ::p_CreateInteriorFaces

Altair Forum User

ok) i'll try.

tinh

And to add the panels to user button,

 set command for the button as

hm_pushpanel 'panel name'

 

Altair Forum User

Altair Forum User said:

And to add the panels to user button,

 set command for the button as

hm_pushpanel 'panel name'

 

Wow!

i'll try! it will be useful to me!

Altair Forum User

what did i do wrong?

*createbutton(5,'organize',4,1,5,GREEN,hm_pushpanel 'Organize Entities')

 

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

don't give solution!

i will try by myself!

Altair Forum User

i can add only tool from tcl scripts box.

but i can not add toolbox that contain all tools.

example.

i have added midmesh.tcl

but has added only midmesh create tool.

i haven't got editor and rebuild tool.=(

Altair Forum User

 

Hi 

 

3D---> detach all elements (not detach from, simply detach) ---> take faces for detached elements, now give equivalence to all detached elements (shift +F3), now F10 ---> 2D --> Duplicates--> save failed

 

Create new collector in model browser --> organize all the saved elements in the new collector by using 'retrieve elements'

 

 

tinh

I have thought about this panel from HM13 but that version does not detach all.

Don't realize that new version has it. cheers!

Robin Nguyen

Altair Forum User said:

Hi,

a script to create interior faces is like this:

You can save it to a file, then bind it with a user defined toolbar button, then just 1-click to get faces, not 2 !

  proc ::p_CreateInteriorFaces args {     if {[string match -nocase display* $args]} {       *createmark elems 1 displayed     } else { 	  *createmarkpanel elems 1 'Select 3d elems:'     }     if {[hm_marklength elems 1]==0} return 	*createmark elems 2 'by config' tetra4 	*markintersection elems 2 elems 1 	set Buf *ELEMENT_SHELL\n 	set i 0 	set ElemList {} 	if {[hm_marklength elems 2]} { 		eval lappend ElemList [hm_getmark elems 2] 		set ElemNodes [join [hm_getvalue elems mark=2 dataname=nodes]] 		foreach {n1 n2 n3 n4} $ElemNodes { 			append Buf '[incr i],CompId,$n1,$n2,$n3\n' 			append Buf '[incr i],CompId,$n1,$n2,$n4\n' 			append Buf '[incr i],CompId,$n2,$n3,$n4\n' 			append Buf '[incr i],CompId,$n3,$n1,$n4\n' 		} 	} 	*createmark elems 2 'by config' penta6 	*markintersection elems 2 elems 1 	if {[hm_marklength elems 2]} { 		eval lappend ElemList [hm_getmark elems 2] 		set ElemNodes [join [hm_getvalue elems mark=2 dataname=nodes]] 		foreach {n1 n2 n3 n4 n5 n6} $ElemNodes { 			append Buf '[incr i],CompId,$n1,$n2,$n3\n' 			append Buf '[incr i],CompId,$n4,$n5,$n6\n' 			append Buf '[incr i],CompId,$n1,$n2,$n5,$n4\n' 			append Buf '[incr i],CompId,$n2,$n3,$n6,$n5\n' 			append Buf '[incr i],CompId,$n3,$n1,$n4,$n6\n' 		} 	} 	*createmark elems 2 'by config' hex8 	*markintersection elems 2 elems 1 	if {[hm_marklength elems 2]} { 		eval lappend ElemList [hm_getmark elems 2] 		set ElemNodes [join [hm_getvalue elems mark=2 dataname=nodes]] 		foreach {n1 n2 n3 n4 n5 n6 n7 n8} $ElemNodes { 			append Buf '[incr i],CompId,$n1,$n2,$n3,$n4\n' 			append Buf '[incr i],CompId,$n5,$n6,$n7,$n8\n' 			append Buf '[incr i],CompId,$n1,$n2,$n6,$n5\n' 			append Buf '[incr i],CompId,$n2,$n3,$n7,$n6\n' 			append Buf '[incr i],CompId,$n3,$n4,$n8,$n7\n' 			append Buf '[incr i],CompId,$n4,$n1,$n5,$n8\n' 		} 	} 	if {$i} { 		eval *createmark elems 1 $ElemList 		*findfaces elems 1 		if {[hm_entityinfo exist comps ^interior_faces -byname]} { 			*createmark elems 1 'by comp name' ^interior_faces 			if {[hm_marklength elems 1]} {*deletemark elems 1} 		} else { 			*collectorcreateonly comps ^interior_faces '' 4 		} 		set Buf [string map [list CompId [hm_getentityvalue comps ^interior_faces id 0 -byname]] $Buf] 		set fpt [open interior_faces.k w] 		puts $fpt $Buf 		close $fpt 		*createstringarray 2 'LsDyna ' 'Keyword971 ' 		*feinputwithdata2 '#ls-dyna\\dynakey' interior_faces.k 0 0 0 0 0 1 2 1 0 		*createmark elems 1 'by comp name' ^interior_faces 		*createmark elems 2 		*elementtestduplicates elems 1 2 2 		if {[hm_marklength elems 2]} {*deletemark elems 2} 		*createmark elems 1 'by comp name' ^interior_faces ^faces 		*createmark elems 2 		*elementtestconnectivity elems 1 2 2 		if {[hm_marklength elems 2]} {*deletemark elems 2} 		*facesdelete 	} 	*clearmarkall 1; *clearmarkall 2 } #example: create interior faces for displayed 3d elems ::p_CreateInteriorFaces displayed

 

Hi,

I am a new user in Hypermesh, and trying to learn how to extract shell from solid face. 

When I tried to add new user toolbar in Hypermesh 2019, there is no choice of 'options' in toolbars. Could you please help me to address this problem and show me a better way to extract the shell from solid face in Hypermesh?

Many thanks!