Experimental and numerical investigation of martensite phase transformation in austenitic stainless steel subjected to ultrasonic nanocrystal surface modification at …

A Ghasemi, SAS Vanini - Surface and Coatings Technology, 2023 - Elsevier
This study aims to investigate the evolution of martensite volume fraction (ξ) following
ultrasonic nanocrystal surface modification (UNSM) on metastable austenitic stainless steel …

Modeling and simulation of laser shock waves in elasto-plastic polycrystalline microstructures

L Lapostolle, L Morin, K Derrien, L Berthe… - Journal of the …, 2023 - Elsevier
We study the propagation of elasto-plastic shockwaves induced by high power laser impacts
in 2D polycrystalline metallic alloys in order to investigate the influence of the material …

Exact expressions of the uniaxial perfectly elasto-plastic stress wave and induced mechanical fields in the case of a finite impact: application to laser shock peening

L Lapostolle, L Morin, K Derrien… - Comptes …, 2023 - comptes-rendus.academie-sciences …
Cet article vise à fournir des expressions exactes pour les champs mécaniques induits par
le grenaillage laser et à les comparer à leurs estimations numériques. Nous utilisons une …

Spatial-temporal characteristics analysis of laser-induced shockwave pressure by reverse optimization with multi-island genetic algorithm

Y Tang, X Nie, H Wu, M Xu, L Yan - Journal of Laser Applications, 2024 - pubs.aip.org
Laser-induced shock wave (LSW) represents a significant phenomenon arising from the
interaction between laser radiation and matter. In this study, we establish a finite element …

[PDF][PDF] 激光冲击强化技术研究和多尺度模拟综述

宋世杰, 杜欣, 赵建锋, 周留成, 阚前华, 张旭 - 航空制造技术, 2023 - amte.net.cn
激光冲击强化技术是一种利用高功率密度和短脉冲的激光对材料表面进行强化处理的新型表面
改性技术, 能够在材料表面形成梯度纳米结构并产生有益的梯度残余压应力场 …

[PDF][PDF] Comptes Rendus Mécanique

L Lapostolle, L Morin, K Derrien, L Berthe, O Castelnau - hal.science
Cet article vise à fournir des expressions exactes pour les champs mécaniques induits par
le grenaillage laser et à les comparer à leurs estimations numériques. Nous utilisons une …