RTU Research Outputs and Resources: Reasearch Staff

Information about Author

Name, Surname:

Jānis Vārna

Department:

(25600) Mehānikas un mašīnbūves institūts

Scientific Degree:

Doktors

E-mail:

Janis.Varna_3(at)rtu.lv

Publications

26 items found, displaying 11 to 20.

Methodology for Macro-Modeling of Bio-Based Composites with Inelastic Constituents
(2018)

Līva Pupure, Jānis Vārna, Roberts Joffe
Scientific article indexed in SCOPUS or WOS database

Statistical Model for Initiation Governed Intralaminar Cracking in Composite Laminates during Tensile Quasi-Static and Cyclic Tests
(2018)

H Ben Kahla, Z Ayadi, F Edgren, Andrejs Pupurs, Jānis Vārna
Scientific article indexed in SCOPUS or WOS database

A Study of Transverse Crack Formation in Fiber-Reinforced Composites by Growth of Fiber-Matrix Debonds
(2017)

L Zhuang, R Talreja, Andrejs Pupurs, Jānis Vārna
Full-text conference paper published in conference proceedings indexed in SCOPUS or WOS database

Growth and Interaction of Debonds in Local Clusters of Fibers in Unidirectional Composites during Transverse Loading
(2017)

Jānis Vārna, L Zhuang, Andrejs Pupurs, Z Ayadi
Scientific article indexed in SCOPUS or WOS database

Fiber/Matrix Debond Growth from Fiber Break in Unidirectional Composite with Local Hexagonal Fiber Clustering
(2016)

L Zhuang, Andrejs Pupurs, Jānis Vārna, Z Ayadi
Scientific article indexed in SCOPUS or WOS database

Incremental Forms of Schapery’s Model: Convergence and Inversion to Simulate Strain Controlled Ramps
(2016)

Jānis Vārna, Līva Pupure, Roberts Joffe
Scientific article indexed in SCOPUS or WOS database

Natural Fiber Composite: Challenges Simulating Inelastic Response in Strain-Controlled Tensile Tests
(2016)

Līva Pupure, Jānis Vārna, Roberts Joffe
Scientific article indexed in SCOPUS or WOS database

On Viscoplasticity Characterization of Natural Fibres with High Variability
(2015)

Līva Pupure, Jānis Vārna, Roberts Joffe
Scientific article indexed in SCOPUS or WOS database

Applications and Limitations of Non-Linear Viscoelastic Model for Simulation of Behaviour of Polymer Composites
(2015)

Līva Pupure, Jānis Vārna, Roberts Joffe
Full-text conference paper published in conference proceedings indexed in SCOPUS or WOS database

Modeling of Natural Fiber Composites
(2015)

Līva Pupure, Jānis Vārna, Roberts Joffe
Reviewed scientific monograph (one author or a group of authors) with ISBN indexed in SCOPUS or WOS database

Projects

3 items found, displaying 1 to 3.

Būvniecības un rekonstrukcijas institūts (34-24200-N7045.1)
Citi

Leonīds Pakrastiņš

Jaunie "gudrie" nano-komozītie materiāli ceļiem, tiltiem, būvēm un transporta mašīnām
Materiālu tehnoloģija

Andrejs Krasņikovs

Materiālu Eksperimentālās Mehānikas Zinātniskā laboratorija (MEMZL)
Mašīnbūve

Andrejs Pupurs

Information about Author

Publications

Methodology for Macro-Modeling of Bio-Based Composites with Inelastic Constituents (2018)

Statistical Model for Initiation Governed Intralaminar Cracking in Composite Laminates during Tensile Quasi-Static and Cyclic Tests (2018)

A Study of Transverse Crack Formation in Fiber-Reinforced Composites by Growth of Fiber-Matrix Debonds (2017)

Growth and Interaction of Debonds in Local Clusters of Fibers in Unidirectional Composites during Transverse Loading (2017)

Fiber/Matrix Debond Growth from Fiber Break in Unidirectional Composite with Local Hexagonal Fiber Clustering (2016)

Incremental Forms of Schapery’s Model: Convergence and Inversion to Simulate Strain Controlled Ramps (2016)

Natural Fiber Composite: Challenges Simulating Inelastic Response in Strain-Controlled Tensile Tests (2016)

On Viscoplasticity Characterization of Natural Fibres with High Variability (2015)

Applications and Limitations of Non-Linear Viscoelastic Model for Simulation of Behaviour of Polymer Composites (2015)

Modeling of Natural Fiber Composites (2015)

Projects

Būvniecības un rekonstrukcijas institūts (34-24200-N7045.1) Citi

Jaunie "gudrie" nano-komozītie materiāli ceļiem, tiltiem, būvēm un transporta mašīnām Materiālu tehnoloģija

Materiālu Eksperimentālās Mehānikas Zinātniskā laboratorija (MEMZL) Mašīnbūve

Methodology for Macro-Modeling of Bio-Based Composites with Inelastic Constituents
(2018)

Statistical Model for Initiation Governed Intralaminar Cracking in Composite Laminates during Tensile Quasi-Static and Cyclic Tests
(2018)

A Study of Transverse Crack Formation in Fiber-Reinforced Composites by Growth of Fiber-Matrix Debonds
(2017)

Growth and Interaction of Debonds in Local Clusters of Fibers in Unidirectional Composites during Transverse Loading
(2017)

Fiber/Matrix Debond Growth from Fiber Break in Unidirectional Composite with Local Hexagonal Fiber Clustering
(2016)

Incremental Forms of Schapery’s Model: Convergence and Inversion to Simulate Strain Controlled Ramps
(2016)

Natural Fiber Composite: Challenges Simulating Inelastic Response in Strain-Controlled Tensile Tests
(2016)

On Viscoplasticity Characterization of Natural Fibres with High Variability
(2015)

Applications and Limitations of Non-Linear Viscoelastic Model for Simulation of Behaviour of Polymer Composites
(2015)

Modeling of Natural Fiber Composites
(2015)

Būvniecības un rekonstrukcijas institūts (34-24200-N7045.1)
Citi

Jaunie "gudrie" nano-komozītie materiāli ceļiem, tiltiem, būvēm un transporta mašīnām
Materiālu tehnoloģija

Materiālu Eksperimentālās Mehānikas Zinātniskā laboratorija (MEMZL)
Mašīnbūve