List of Articles Softening Open Access Article Abstract Page Full-Text 1 - Fatigue Crack Growth in Plastically Compressible Solids: Role of Negative Stress Ratio, Plastic Compressibility and Strain Softening Y Mittal D Khan S Pandey G.Chand Gupta 10.22034/jsm.2020.1899251.1587 Open Access Article Abstract Page Full-Text 2 - Logical designing of yield pillar base on coal pillars yielding process Kazem Oraee Navid Hosseini Open Access Article Abstract Page Full-Text 3 - Investigation of The Mechanism of Change of Concrete Modulus Matrix in Monotonic Loading and its Numerical Analysis Farzad Peyman Open Access Article Abstract Page Full-Text 4 - حل مساله ی غیرخطی نوسانگرهای سخت شونده و نرم شونده با روش تجزیه ی آدومین بهرام گل محمدی قاسم اسعدی کردشولی علیرضا وحیدی