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New Side Impact Barrier Shell Model released

The Oasys LS-DYNA Environment launch a new Side Impact Barrier Shell Model for the China NCAP Protocol. 

Arup and Oasys Ltd. have a proven track record of over 20 years of experience in barrier development using proven modelling techniques that demonstrate robustness and fidelity, including our collaboration with Cellbond. 

These models have been developed to take advantage of the latest developments in the LS-DYNA code and are designed to provide robust and efficient analysis. 

The specifications for the newest deformable impact barrier: SC-MDB C-NCAP, has been taken from the China-NCAP document ‘C-NCAP Management Rules (2024 edition). The SC-MDB barrier is used in the 2024 China New Car Assessment Programme (C-NCAP) in their Side Impact Testing Protocol.   

The six honeycomb blocks have been validated in compliance to C-NCAP SC-MDB specifications.  

The LS-DYNA model calibration has been done using the simulation results for a 40kph dynamic impact against a rigid wall. The test involves the barrier on a trolley impacting a rigid wall. The force-deflection curves, generated from the model’s analyses have been compared against the corridors from the specification document.  

This validation work has been carried out in MPP versions of LS-DYNA R11.2.2, R13.1.0, and the latest R14.1.0 to ensure performance and accuracy.​ 

To make pre-processing easier, simplified definitions for the encrypted keywords have been included. LS-DYNA will ignore this data but Oasys PRIMER, version v11 and onwards, will read this and avoid any errors during model checking and manipulation. 

Click here to find out more about the model.

标题: 新型侧碰壁障模型现已推出

Oasys LS-DYNA Environment 推出了适用中国 NCAP的最新侧碰壁障模型。

Arup和Oasys在壁障模型开发方面拥有超过20年的丰富经验, 这些经过验证的建模技术以及和Cellbond的合作，确保了我们模型的稳健性和精确性。

这些模型是基于LS-DYNA 最新的代码进行的开发，旨在提供稳健而高效的分析。

最新可变形防撞壁障的规格:SC-MDB C-NCAP,摘自China-NCAP文件《C-NCAP管理规则(2024版)》。SC-MDB 壁障将用于 2024 年中国新车评价章程（C-NCAP）的侧面碰撞测试规程。

六块蜂窝状结构性能已通过验证，符合 C-NCAP SC-MDB 规范要求。

LS-DYNA 的壁障模型校准是使用时速 40 kp对刚性墙进行的态撞击的模拟结果进行的。该试验使用台车上的壁障撞击刚性墙壁。模型分析得出的力-挠度曲线与规范文件中的范围进行了比较。

这项验证工作分别在 LS-DYNA R11.2.2、R13.1.0 和最新 R14.1.0 的 MPP 版本中进行测试，以确保壁障模型的性能和准确性。

为简化前处理，对加密关键字进行了简化定义。LS-DYNA 将忽略这些数据，但 v11 及以后版本的 Oasys PRIMER 将读取这些数据，这将避免在模型检查和操作过程中出现任何错误。

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