Helmuth Langmaack Toftegaard

Helmuth Langmaack Toftegaard

Senior Scientist

DTU WIND ENERGY
Department of Wind Energy

Technical University of Denmark

Frederiksborgvej 399

Building 228, room S39

4000 Roskilde

Ph.
Ph.
Mobile
Fax +45 46 77 57 58
E-mail heto@dtu.dk
ORCID 0000-0002-1574-5481

Request a vCard via e-mail.

Publications
Projects
Loading

Publications rss feed

2019
 

General J integral solution for specimens loaded by moments, axial forces and residual stresses – A unifying stiffness formulation

Toftegaard, Helmuth Langmaack ; Sørensen, Bent F.
in: Engineering Fracture Mechanics, vol: 217

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1016/j.engfracmech.2019.106500

2017
  PDF

Effect of shot peening on the residual stress and mechanical behaviour of low-temperature and high-temperature annealed martensitic gear steel 18CrNiMo7-6

Yang, R. ; Zhang, X. ; Mallipeddi, D. ; Angelou, Nikolas ; Toftegaard, Helmuth Langmaack ; Li, Y. ; Ahlstrom, J. ; Lorentzen, Lars ; Wu, G. ; Huang, X.
in: I O P Conference Series: Materials Science and Engineering, vol: 219

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1088/1757-899X/219/1/012046

2016
  PDF

Delamination initiated by a defect

Biel, Anders ; Toftegaard, Helmuth Langmaack
in: IOP Conference Series: Materials Science and Engineering, vol: 139
Presented at:
37th Risø International Symposium on Materials Science

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2016     |    DOI: https://doi.org/10.1088/1757-899X/139/1/012015

2015
 

Damage tolerance and structural monitoring for wind turbine blades

McGugan, Malcolm ; Pereira, Gilmar Ferreira ; Sørensen, Bent F. ; Toftegaard, Helmuth Langmaack ; Branner, Kim
in: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol: 373

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2015     |    DOI: https://doi.org/10.1098/rsta.2014.0077

2014
 

Effects of equal channel angular extrusion on microstructure, strength and ballistic performance of AA5754 plates

Mishin, Oleg ; Hong, Chuanshi ; Toftegaard, Helmuth Langmaack
in: Proceedings of the Risø International Symposium on Materials Science, vol: 35, pages: 389-395
Presented at:
35th Risø International Symposium on Materials Science : New Frontiers of Nanometals

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2014

 

Environmental effect on the mechanical properties of commingled-yarn-based carbon fibre/polyamide 6 composites

Raghavalu Thirumalai, Durai Prabhakaran ; Toftegaard, Helmuth Langmaack
in: Journal of Composite Materials, vol: 48, issue: 21, pages: 2551-2565

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1177/0021998313501012

 

Experimental and theoretical assessment of flexural properties of hybrid natural fibre composites

Raghavalu Thirumalai, Durai Prabhakaran ; Toftegaard, Helmuth Langmaack ; Markussen, Christen Malte ; Madsen, Bo
in: Acta Mechanica, vol: 225, issue: 10, pages: 2775-2782
Presented at:
3rd Asian Conference on Mechanics of Functional Materials and Structures (ACMFMS 2012)

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1007/s00707-014-1210-5

 

Plasma treatment of carbon fibres and glass-fibre-reinforced polyesters at atmospheric pressure for adhesion improvement

Kusano, Yukihiro ; Løgstrup Andersen, Tom ; Toftegaard, Helmuth Langmaack ; Leipold, Frank ; Bardenshtein, Alexander ; Krebs, Niels
in: International Journal of Materials Engineering Innovation, vol: 5, issue: 2, pages: 122-137

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014

2013
  PDF

Adhesion improvement of fibres by continuous plasma treatment at atmospheric pressure

Kusano, Yukihiro ; Løgstrup Andersen, Tom ; Sørensen, Bent F. ; Toftegaard, Helmuth Langmaack ; Teodoru, Steluta ; Hansen, Charles M.
in: Proceedings of the Risø International Symposium on Materials Science, vol: 34, pages: 273-278
Presented at:
34th Risø International Symposium on Materials Science

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2013

 

Multivariate data-driven modelling and pattern recognition for damage detection and identification for acoustic emission and acousto-ultrasonics

Torres-Arredondo, M.A. ; Tibaduiza, D.-A. ; McGugan, Malcolm ; Toftegaard, Helmuth Langmaack ; Borum, Kaj Kvisgaard ; Mujica, L.E. ; Rodellar, J. ; Fritzen, C.-P.
in: Smart Materials and Structures, vol: 22

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2013     |    DOI: https://doi.org/10.1088/0964-1726/22/10/105023