Drop-Weight Impact Testing & Finite Element Analysis

Drop-weight impact testing is a type of mechanical testing used to simulate the mechanical effects of impact, such as shock or vibration. It usually involves dropping a weight onto a material or specimen to measure how it reacts. It can be used to test the strength, ductility, and fracture toughness of a material or specimen. Impact testing of composite materials is important to understand the behavior of a material when subjected to an impact force. Different impact tests can be used to measure the capacity of a material to absorb energy, such as Charpy, Izod, and drop weight tests. Depending on the application, the test method should be selected carefully to simulate the expected conditions.

Low velocity impact testing is a type of test that uses a low speed, low energy impact to assess the performance of a material or structure. This test can be used to identify weaknesses in a material or product that could cause it to fail in the event of an accident or other unexpected force. High velocity impact testing is a much more rigorous test that uses a much higher speed, higher energy impact to determine the effects of a much more extreme force. This type of test is most commonly used to evaluate the performance of materials and structures in high-impact scenarios, such as a crash or explosion in different applications, such as aerospace, automotive, and consumer products. The results of the testing can help to determine the best material or component design for a specific application.

Constitutive modeling is a powerful tool for predicting the impact properties of composites. It can be used to simulate the behavior of materials under various loading conditions, such as shock and impact. The key to successful modeling lies in the accurate characterization of the physical and mechanical properties of the material, as well as its microstructural features. It’s also important to consider the loading history of the material and the type of loading it will be subjected to. Computer simulations and finite element analysis can be used to understand the behavior of the material under different impact conditions using accurate material models developed from constitutive modeling of composite materials.

Abaqus and LS-Dyna are powerful simulation tools that can be used to model various types of impacts at low velocities. These softwares offer a wide range of contact options and constitutive material models which can be used to accurately simulate the behavior of the material during the impact. Additionally, the softwares provide an interface for adjusting the properties of the materials and the environment of the impact (such as air resistance, friction, etc.), allowing you to create an accurate representation of the impact. If you would like more information about how to use LS-Dyna for low velocity impact modeling, please feel free to reach out to us and we would be more than happy to help!