In this study, we investigate the feasibility of in-situ crack propagation by using a double cleavage drilled compression (DCDC) specimen showing a slow crack velocity down to 0.03 mm/s under 0.01. ERIE (AP) - President Donald Trump pushed into arguably the most important state on the electoral map on Tuesday, opting for a rally in Pennsylvania instead of formal debate practice. College students returned this fall to find rigid COVID-19 prevention rules that take away from college’s social appeal.
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