Computational investigation on the efficacy and safety of the lesion preparation devices in calcified coronary artery with a cracking model of calcification

我们成功地测试了一个可用的脆性开裂模型，混凝土损伤塑性模型（CDP），以确认断裂行为的钙化模型使用演示数据。当应变值达到拉伸应变破坏准则时，去除钙化模型中的元素。我们加工了一种力学性能接近于真实的钙化物的较好的圆柱形模拟材料，并进行了实验测试，以获得压缩应力-应变数据。峰值应力与钙化值吻合良好。在数值模拟中测试的CDP模型的最新研究成果将在EMBC 2023国际会议上发表在七月。

We successfully tested an available brittle cracking model, concrete damaged plasticity model (CDP), to confirm the fracture behavior of the calcification model using a demo data. The elements of the calcification model were removed when the value of strain reached the failure criteria of tensile strain. It provided a capability for modeling brittle cracking behavior.We processed a preferable cylindrical analogue material which mechanical property is close to the real calcification and performed experimental tests to obtain the compression stress-strain data.The peak stress is in good agreement with the value of the calcification.Recent research outcome of the CDP model tested in the numerical simulation will be presented in an international conference EMBC2023 in July.