This work conducts staged confining pressure cyclic loading and unloading (SCPLU) tests on coal rock to explore its energy evolution and damage features under complex stress states. A novel damage ...

As FedEx Corp. and UPS Inc. beef up automation to keep pace with surging e-commerce and a potential threat from Amazon.com, they’ve been stumped at a crucial stage: loading and unloading trucks. Robot ...

To investigate the effects of graded equal amplitude cyclic loading on rock deformation and failure, this study examines the influence of confining pressure and upper limit cyclic stress on the ...