Challenges in Mechanics of Time-Dependent Materials, Mechanics of Biological Systems and Materials, and Micro-and Nanomechanics, Volume 2 of the Proceedings of the 2021 SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the second volume of four from the Conference, brings together contributions to this important area of research and engineering.  The collection presents early findings and case studies on fundamental and applied aspects of Experimental Mechanics, including papers in the following general technical research areas:



 Characterization Across Length Scales



Extreme Conditions & Environmental Effects



Damage, Fatigue and Fracture



Structure, Function and Performance



Rate Effects in Elastomers



Viscoelasticity & Viscoplasticity



Research in Progress



Extreme Nanomechanics



In-Situ Nanomechanics



Expanding Boundaries in Metrology



Micro and Nanoscale Deformation



MEMS for Actuation, Sensing and Characterization



1D & 2D Materials



Cardiac Mechanics



Cell Mechanics



Biofilms and Microbe Mechanics



Traumatic Brain Injury



Orthopedic Biomechanics



Ligaments and Soft Materials