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Showing results for tags 'tied contact'.
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Hello everyone, Greetings!! I have made seam weld elements between 2 components. Then I made tied contact (Type 2 contact) between these components by considering seam elements as master component. But when I ran the crash simulation mass of 720 kg was added in these seam elements, which made the entire mass of my crash sled 3.5 times heavier than the actual weight. I have to use tied 2 contact as I wanted to use the contact interface for spot welds. I cant omit DT/NODA/CST, otherwise my simulation time is increasing exponentially. Because of crash simulation, some elements are deforming to a very small length. Thanks in advance. Regards Nitin Jain
Hi, In figure, two 1T shells are fixed on one edge. (Gap between 2 shells is 1.1) Interface between top and bottom shells is modeled by using /INTER/TYPE2. To set no relative motion, setting in type2 is default. Concentrated load is excited at node number 7 on top shell. Load curve and scale are as follows. (The load has effect like Impact.) I think that relative displacement between node 7 and 128 is perfectly zero because I use type2 default. However, in x,y,z direction, relative displacement occurs. It looks like almost zero but I want perfectly no relative motion. How can I set that? Another question is Physically the plate is excited by impact, acceleration of plate is decayed I don't use damping, so I think acceleration of some node is decayed to steady state response. But acceleration of node 7 is like this. Response is increased. Why??? Thanks