http://journalces.com/index.php/JCES JCES en-US Journal of Civil Engineering and Structures 2588-3275 http://journalces.com/index.php/JCES/article/view/54 <p>This paper introduces a new approach to calculate stress intensity factors based on a combination of ordinary bond-based&nbsp;Peridynamic Theory and Displacement Extrapolation Method (DEM). To demonstrate the capability of the proposed approach, different benchmark problems are considered including plate with a central crack, plate with two offset edge crack and plate with crack and hole. Good agreements between proposed method and reference solutions indicate the high performance and capability of the proposed method in calculating the stress intensity factor in plates with discontinuities. It can also be stated that the stress intensity factor in isotropic plates with crack and hole depends on the length of the crack and hole radius and their location and number, and by changing these factors, the stress intensity factor in the body will also change.</p> Ahmad Azizi Saeed Firouzabadiyazd Mohammadhossein Shafaf Reza Rashmehkarim Copyright (c) 2025 Journal of Civil Engineering and Structures https://creativecommons.org/licenses/by/4.0 2024-10-21 2024-10-21 9 1 10.21859/jces.9154 http://journalces.com/index.php/JCES/article/view/53 <p>Concrete is a frequently utilized building material because it is affordable and strong Concrete is ranked second after water due to its widespread use The most widely used building material is concrete, which is also the second most consumed substance globally Aggregates add a major volume to concrete. The aggregates comprise around 70-80% of the volume of the structural concrete, with coarse aggregate (CA) accounting for 40-50% and fine aggregate for 25-30%. Bethamcherla stone at 0%, 10%, 20%, 30%, 40%, and 50% by weight of coarse aggregate is used as coarse aggregate allows us to create a combination that is as economical as possible. Concrete can self-cure by adding polyvinyl alcohol at concentrations of 0.03%, 0.06%, 0.12%, and 0.24%.</p> Sumanth Naik Mude Hanchate Sudarsana Rao Vaishali. G Ghorpade Copyright (c) 2025 Journal of Civil Engineering and Structures https://creativecommons.org/licenses/by/4.0 2024-10-21 2024-10-21 9 1 10.21859/jces.9153