LOAD: BODY Z and BODY PARTS

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Yahia Halabi

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Jun 22, 2026, 1:48:47 AM (14 days ago) Jun 22
to LS-DYNA2
Hello everyone:
I have a 2-floor building. I want to run the static analysis and Dynamic relaxation analysis for a short period to know the reaction forces from static loading on the base, 
I have two questions: 
1. Should I use LOAD-BODY-Z with LOAD_PARTS together? or just BODY_Z laoding is enough to simulate the self-weight of the structure and some additional loads. 
2. Is it necessary to run DR analysis to  simulate   the static status of the structure? 

l...@schwer.net

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Jun 22, 2026, 9:36:14 AM (13 days ago) Jun 22
to Yahia Halabi, LS-DYNA2

1\ You likely only need LOAD-BODY-Z if all your parts are to be gravity loaded.

 

2\ Dynamic Relaxation is the preferred way to obtain explicit solution quasi-static results.

 

                --len

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