University of Thessaly, Department of Civil Engineering Pedion Areos, 38334 Volos, Greece Ph.: +30 24210 74158. Fax: +30 24210 74131.
Eftihia Nathanail
University of Thessaly, Department of Civil Engineering Pedion Areos, 38334 Volos, Greece Ph.: +30 24210 74164. Fax: +30 24210 74131.
Paraskevi Kapetanopoulou
Aristotle University of Thessaloniki, Department of Mechanical Engineering Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece Ph.: +30 2310 995914.