Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Study on the Relationship between Strength and Failure Area of Concrete Specimens under Complex Loading Conditions

Version 1 : Received: 10 April 2024 / Approved: 10 April 2024 / Online: 11 April 2024 (09:07:21 CEST)

How to cite: Liang, X.; Li, W.; Wu, Z. Study on the Relationship between Strength and Failure Area of Concrete Specimens under Complex Loading Conditions. Preprints 2024, 2024040756. https://doi.org/10.20944/preprints202404.0756.v1 Liang, X.; Li, W.; Wu, Z. Study on the Relationship between Strength and Failure Area of Concrete Specimens under Complex Loading Conditions. Preprints 2024, 2024040756. https://doi.org/10.20944/preprints202404.0756.v1

Abstract

Based on the dynamic strength variation mechanism of concrete under complex loading conditions, two approaches were devised: numerical testing and CT scanning, guided by the principle of minimizing energy dissipation. A methodology for calculating concrete's failure area and measuring its strength was developed. The analysis delves into the mechanisms behind failure patterns and variations in concrete specimen strength, focusing on crack initiation, development, and the resultant failure surface formed by crack propagation, along with the stress distribution in concrete specimens subjected to diverse loading conditions. Through evaluating the strength and computed failure area of concrete specimens, it is evident that the loading method influences both the strength and failure area of concrete specimens. In general, a larger failure area correlates with a higher measured strength.

Keywords

Concrete material; Stress state; Strength; Damaged area

Subject

Engineering, Architecture, Building and Construction

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