PEER Reports

PEER Reports

Parallel Level-Set DEM (LS-DEM) Development and Application to the Study of Deformation and Flow of Granular Media, PEER Report 2022-06

Peng Tan
Nicholas Sitar
2022

We present a systematic investigation of computational approaches to the modeling of granular
materials. Granular materials are ubiquitous in everyday life and in a variety of engineering and
industrial applications. Despite the apparent simplicity of the laws governing particle-scale interactions,
predicting the continuum mechanical response of granular materials still poses extraordinary
challenges. This is largely due to the complex history dependence resulting from continuous rearrangement
of the microstructure of granular material, as well as the mechanical interlocking...

Large-Component Seismic Testing for Existing and Retrofitted Single-Family Wood-Frame Dwellings (PEER-CEA Project), PEER Report 2020-20

Kelly Cobeen
Vahid Mahdavifar
Tara Hutchinson
Brandon Schiller
David P. Welch
Grace S. Kang
Yousef Bozorgnia
2020

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.”

The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis, and...

Cripple Wall Small-Component - Test Program: Comparisons (PEER-CEA Project), PEER 2020-19

Brandon Schiller
Tara Hutchinson
Kelly Cobeen
2020

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER) and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.”

The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis,...

Cripple Wall Small-Component Test Program: Wet Specimens II (PEER-CEA Project), PEER Report 2020-18

Brandon Schiller
Tara Hutchinson
Kelly Cobeen
2020

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.”

The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis, and...

Cripple Wall Small-Component Test Program: Wet Specimens I (PEER-CEA Project), Peer Report 2020-16

Brandon Schiller
Tara Hutchinson
Kelly Cobeen
2020

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.”

The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis, and...

Development of Testing Protocol for Cripple Wall Components (PEER-CEA Project), Peer Report 2020-15

Farzin Zareian
Joel Lanning
2020

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER) and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.”

The overall objective of the PEER–CEA project is to provide scientifically-based information (e.g., testing, analysis,...

Probabilistic Seismic Hazard Analysis and Selecting and Scaling of Ground-Motion Records (PEER-CEA Project), Peer Report 2020-14

Silvia Mazzoni
Nicholas Gregor
Linda Al Atik
Yousef Bozorgnia
David P. Welch
Gregory G. Deierlein
2020

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER) and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.”

The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis,...

Development of Index Buildings, (PEER-CEA Project), PEER Report 2020-13

Evan Reis
2020

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER–CEA Project.”

The overall objective of the PEER–CEA Project is to provide scientifically based information (e.g., testing, analysis, and...

Project Technical Summary (PEER-CEA Project), Peer Report 2020-12

Evan Reis
Yousef Bozorgnia
Henry Burton
Kelly Cobeen
Gregory G. Deierlein
Tara Hutchinson
Grace S. Kang
Bret Lizundia
Silvia Mazzoni
Sharyl Rabonivici
Brandon Schiller
David P. Welch
Farzin Zareian
2020

This report is one of a series of reports documenting the methods and findings of a multi-year, multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research Center (PEER) and funded by the California Earthquake Authority (CEA). The overall project is titled “Quantifying the Performance of Retrofit of Cripple Walls and Sill Anchorage in Single-Family Wood-Frame Buildings,” henceforth referred to as the “PEER-CEA Project.”

The overall objective of the PEER–CEA project is to provide scientifically based information (e.g., testing, analysis,...

Hyperbolic Hydro-mechanical Model for Seismic Compression Prediction of Unsaturated Soils in the Funicular Regime, PEER Report 2022-05

Dellena Kinikles
John S. McCartney
2022

A semi-empirical elasto-plastic constitutive model with a hyperbolic stress-strain curve was developed with the goal of predicting the seismic compression of unsaturated sands in the funicular regime of the soil-water retention curve (SWRC) during undrained cyclic shearing. Using a flow rule derived from energy considerations, the evolution in plastic volumetric strain (seismic compression) was predicted from the plastic shear strains of the hysteretic hyperbolic stress-strain curve. The plastic volumetric strains are used to predict the changes in degree of saturation from phase...