فهرس المقالات Bicycle Helmet حرية الوصول المقاله صفحة الملخص نص كامل 1 - Design and Analysis of Bicycle Helmet Made of PETg and ABS with Honeycomb Structure Against External Impacts using Abaqus Software sajjad pakzad ahad shah hoseini Maryam Dehghani amir bahador khalkhali 10.30495/admt.2021.1896746.1185
