Ambrosio Olivos
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Ambrosio Olivos has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Jorge Fernández
Department of Mechanical Engineering, Universidad del Bío-Bío, Concepción 4081112, Chile
2 shared publications - Karin Saavedra
Departamento de Tecnologías Industriales, Universidad de Talca, Campus Curicó, Curicó 3340000, Chile
2 shared publications - Rodrigo Valle
Construction Multidisciplinary Research Group, Facultad de Arquitectura, Construcción y Medio Ambiente, Universidad Autónoma de Chile, Talca 3460000, Chile
2 shared publications - Felipe Núñez
Construction Multidisciplinary Research Group, Facultad de Arquitectura, Construcción y Medio Ambiente, Universidad Autónoma de Chile, Talca 3460000, Chile
1 shared publication - Felipe Núñez
Doctorado en Sistemas de Ingeniería, Facultad de Ingeniería, Universidad de Talca, Campus Curicó, Chile, Chile
1 shared publication
Latest Publications
- Open Access
Mode I Fracture and Cohesive Behavior of 1C-PUR Bonded Chilean Pinus radiata D. Don: Effect of Predominant Crack Propagation Path
This study investigates Mode I fracture of Chilean Pinus radiata D. Don bonded with one-component polyurethane (1C-PUR) through 20 Double Cantilever Beam (DCB) tests in the tangential–longitudinal (TL) and radial–longitudinal (RL) planes. Adhesive-dominated (AD) and timber-dominated (TD) crack paths were identified visually and compared with solid timber (ST). Trilinear cohesive laws were identified from compliance-based equivalent R-curves. TD specimens showed higher critical strain energy release rates () than AD: 535.56 vs. 338.92 N/m in TL and 428.05 vs. 274.04 N/m in RL (mean curves; and 0.185, not significant). Compared with ST, was 96% (TL) and 67% (RL) higher for TD and 24% (TL) and 7% (RL) higher for AD, the AD–ST difference being significant only in TL. The critical opening displacement of bonded specimens was less than half that of ST. These appear to be the first identified Mode I cohesive laws for 1C-PUR-bonded radiata pine. For compliance-calibrated bonded specimens, is independent of the flexural modulus, and only and the critical opening are robustly identifiable: a 0.9–4-fold change in cohesive tensile strength altered the simulated peak load by <0.3%. These results support simulations of glued-laminated and cross-laminated timber.Open AccessMode I Fracture and Cohesive Behavior of 1C-PUR Bonded Chilean Pinus radiata D. Don: Effect of Predominant Crack Propagation Path
This study investigates Mode I fracture of Chilean Pinus radiata D. Don bonded with one-component polyurethane (1C-PUR) through 20 Double Cantilever Beam (DCB) tests in the tangential–longitudinal (TL) and radial–longitudinal (RL) planes. Adhesive-dominated (AD) and timber-dominated (TD) crack paths were identified visually and compared with solid timber (ST). Trilinear cohesive laws were identified from compliance-based equivalent R-curves. TD specimens showed higher critical strain energy release rates () than AD: 535.56 vs. 338.92 N/m in TL and 428.05 vs. 274.04 N/m in RL (mean curves; and 0.185, not significant). Compared with ST, was 96% (TL) and 67% (RL) higher for TD and 24% (TL) and 7% (RL) higher for AD, the AD–ST difference being significant only in TL. The critical opening displacement of bonded specimens was less than half that of ST. These appear to be the first identified Mode I cohesive laws for 1C-PUR-bonded radiata pine. For compliance-calibrated bonded specimens, is independent of the flexural modulus, and only and the critical opening are robustly identifiable: a 0.9–4-fold change in cohesive tensile strength altered the simulated peak load by <0.3%. These results support simulations of glued-laminated and cross-laminated timber. - Open Access
- 21 October 2026
- Published by MDPI AG in Preprints.org
Mode I Fracture and Cohesive Behavior of 1C-PUR Bonded Chilean Pinus radiata D. Don: Effect of Predominant Crack Propagation Path
The structural performance of engineered timber products depends strongly on the behavior of bonded interfaces. This study investigates Mode I fracture of Chilean Pinus radiata D. Don bonded with a one-component polyurethane (1C-PUR) adhesive through Double Cantilever Beam (DCB) tests in the tangential–longitudinal (TL) and radial–longitudinal (RL) planes. Two predominant crack propagation paths, adhesive-dominated (AD) and timber-dominated (TD), were identified by visual inspection of the fracture surfaces, and the results were compared with previously reported solid timber (ST). Equivalent R-curves were obtained from specimen compliance without direct crack-front tracking, and trilinear cohesive laws were identified through dimensional analysis. TD specimens exhibited higher mean critical strain energy release rates (GIc) than AD specimens, with 535.56 and 428.05 [N/m] in TL and RL, respectively, compared with 338.92 and 274.04 [N/m]. Relative to ST, the mean GIc was 105% and 75% higher for TD and 30% and 12% higher for AD, although the RL-AD difference was small compared with its variability. The critical opening displacement of the bonded specimens was less than half that of ST, whereas the cohesive tensile strength was only weakly identifiable and is reported as an effective parameter. The results provide a basis for simulating bonded laminated and cross-laminated timber structures.
- 21 October 2026
- Published by MDPI AG in Preprints.org
Open AccessMode I Fracture and Cohesive Behavior of 1C-PUR Bonded Chilean Pinus radiata D. Don: Effect of Predominant Crack Propagation Path
The structural performance of engineered timber products depends strongly on the behavior of bonded interfaces. This study investigates Mode I fracture of Chilean Pinus radiata D. Don bonded with a one-component polyurethane (1C-PUR) adhesive through Double Cantilever Beam (DCB) tests in the tangential–longitudinal (TL) and radial–longitudinal (RL) planes. Two predominant crack propagation paths, adhesive-dominated (AD) and timber-dominated (TD), were identified by visual inspection of the fracture surfaces, and the results were compared with previously reported solid timber (ST). Equivalent R-curves were obtained from specimen compliance without direct crack-front tracking, and trilinear cohesive laws were identified through dimensional analysis. TD specimens exhibited higher mean critical strain energy release rates (GIc) than AD specimens, with 535.56 and 428.05 [N/m] in TL and RL, respectively, compared with 338.92 and 274.04 [N/m]. Relative to ST, the mean GIc was 105% and 75% higher for TD and 30% and 12% higher for AD, although the RL-AD difference was small compared with its variability. The critical opening displacement of the bonded specimens was less than half that of ST, whereas the cohesive tensile strength was only weakly identifiable and is reported as an effective parameter. The results provide a basis for simulating bonded laminated and cross-laminated timber structures.