Work

A unified predictive approach for conical object penetration

Year: 2025

Type: article

Abstract: This paper investigates the penetration of conical objects with varying apex angles in clayey soils, drawing inspiration from biological adaptations observed in nature. Using large deformation numerical modelling, a systematic series of analyses were conducted to explore the effects of apex angle, soil rigidity, interface roughness, and penetration depth on the penetration resistance. The results were characterised using a dimensionless bearing factor, Nc, which was decomposed into a normal component Ncn and a shear component Ncs. The study revealed that Ncn is influenced by apex angle, interface roughness, soil rigidity and penetration depth while Ncs is predominantly dependent on apex angle and interface roughness. A unified predictive approach of soil resistance was developed from the comprehensive analyses, demonstrating broad applicability across natural and engineering domains. Application case studies were conducted in the natural domain by examining earthworm burrowing and the associated soil organic carbon requirements and in engineering by exploring resistance of different conical footings. By deepening the understanding of conical object penetration, this study offers insights for bioinspired design and practical engineering solutions.

Source: Computers and Geotechnics

DOI: 10.1016/j.compgeo.2025.107187

Authors: Huan Zhao, Yinghui Tian, Antonio Gens

Institutions: Tianjin University, The University of Melbourne, Universitat Politècnica de Catalunya

Language: English

Topic: Geotechnical Engineering and Soil Mechanics

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,640

Funder: Australian Research Council