工程可靠性与随机力学国际联合研究中心

2025年第15期（总第107期）学术报告

工程力学研究中心第61期学术报告

文远讲坛330期

报告主题

TOPIC

异质材料断裂变分模拟：相场断裂模型与内聚区模型的耦合方法

Variational simulation of failure in heterogeneous materials by coupling the phase field approach to fracture and the cohesive zone model

报告人

SPEAKER

Prof. Marco Paggi

Full Professor, Deputy Rector, IMT School for Advanced Studies Lucca, Italy

报告时间

TIME

2025年10月22日（周三）上午9:30-10:30

报告地点

VENUE

同济大学土木大楼 A305

主持人

CHAIR

彭勇波教授、陈建兵教授

联系人：谢建康

报告摘要

Abstract

This seminar will present an overview of achievements since 2017 at the IMT School for Advanced Studies Lucca in the failure analysis of composite materials and structures. Our research is based on a novel variational approach that synergistically combines the phase-field method to simulate fracture in the bulk material with the cohesive zone model to predict decohesion at interfaces. This framework uniquely captures the complex interplay between these two failure mechanisms. Developed through extensive international collaborations with researchers from the University of Seville and the University of Girona (Spain), the presented results and applications include: (i) solving the fundamental problem of a crack impinging on an interface; (ii) analyzing the competition between interlaminar and translaminar crack propagation in laminates; and (iii) investigating structural failures in long fiber-reinforced composites, focusing on the interplay between fiber-matrix decohesion and matrix fracture.

报告人简介

Speaker Bio

Prof. Marco Paggi is a Full Professor of Structural Mechanics at the IMT School for Advanced Studies Lucca, Italy. He serves as the Deputy Rector and directs both the Multi-scale Analysis of Materials (MUSAM) research unit and the MUSAM-Lab. He received his PhD in Structural Mechanics from the Politecnico di Torino, Italy, in 2005. In 2010, he was awarded an Alexander von Humboldt Research Fellowship at Leibniz Universität Hannover, Germany. He has held visiting positions at several prestigious institutions, including Université Paris-Est (France), the University of Girona (Spain), and the Indian Institute of Technology Delhi (India). Prior to his current appointment, he was a professor at the Politecnico di Torino, the University of Pisa, and the University of Trento. His research focuses on contact mechanics, fracture mechanics, and multiphysics simulations, with applications to a wide range of structural and material systems. Professor Paggi is the author of over 250 peer-reviewed publications and has been the Principal Investigator of numerous EU-funded projects, including two prestigious grants from the European Research Council (ERC).