{"id":362970,"date":"2024-04-18T17:55:23","date_gmt":"2024-04-18T17:55:23","guid":{"rendered":"\/forum\/?post_type=topic&#038;p=362970"},"modified":"2024-04-18T17:55:32","modified_gmt":"2024-04-18T17:55:32","slug":"impact-analysis-using-explicit-dynamics","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/impact-analysis-using-explicit-dynamics\/","title":{"rendered":"Impact Analysis using Explicit Dynamics"},"content":{"rendered":"<div>Hello Ansys Community,<\/div>\n<div>&nbsp;<\/div>\n<div>I am currently conducting an impact test for a stopper used to stop an aluminium vehicle moving with a velocity of 15m\/s, utilizing the explicit dynamics module of Ansys. However, I am encountering challenges with either insufficient run time or difficulties in determining an appropriate time step, leading to undesired results. Specifically, my test involves a stopper made of rubber and foam with a steel plate attached at its end, being impacted by an aluminum vehicle moving at a velocity of 15m\/s.<\/div>\n<div>&nbsp;<\/div>\n<div>Could anyone provide guidance on the exact process for conducting such an impact test in Ansys Explicit Dynamics? I am&nbsp;particularly interested in recommendations for setting up the simulation parameters, defining the contact and material properties, selecting appropriate time steps, and ensuring accurate and reliable results.<\/div>\n<div>&nbsp;<\/div>\n<div>Below are the results that we got from the simulations that were conducted. The graphs attached are for the contact forces on the steel plate of stopper and on the bumper attched to the aluminium vehicle. We intend to find the deformations and the contact forces for the stopper and the bumper of the vehicle to estimate the failure of the system.<\/div>\n<div>&nbsp;<\/div>\n<div>Any insights, tips, or best practices from experienced users would be greatly appreciated.<\/div>\n<div>&nbsp;<\/div>\n<div>Thank you in advance for your help.<\/div>\n<div><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713456202-Screenshot 2024-03-28 182211.png\" alt=\"\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713456240-Screenshot 2024-03-28 182238.png\" alt=\"\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713456265-Screenshot 2024-03-28 182333.png\" alt=\"\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/04\/18-04-2024-1713456179-Screenshot 2024-03-28 182224.png\" alt=\"\"><\/div>\n","protected":false},"template":"","class_list":["post-362970","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello Ansys Community, I am currently conducting an impact test for a stopper used to stop an aluminium vehicle moving with a velocity of 15m\/s, utilizing the explicit dynamics module of Ansys. 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