فهرس المقالات ductility indices حرية الوصول المقاله صفحة الملخص نص كامل 1 - Comprehensive Flexural Analysis of High-Performance Fiber-Reinforced Concrete Based on Mix Design and Energy/Post-Peak Strength Indices peyman farhadi yegane maryam firoozi Ata Hojatkashani abbas akbarpour nik ghalb rashti hasan abbasi