Buckling calculator was changed, accidental eccentricity logic was added

StructureHelperLogics/NdmCalculations/Buckling/ConstDeltaELogic.cs

@@ -1,4 +1,6 @@
-using System;
+using StructureHelperCommon.Infrastructures.Interfaces;
+using StructureHelperCommon.Models;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,9 +10,15 @@ namespace StructureHelperLogics.NdmCalculations.Buckling
 {
     public class ConstDeltaELogic : IConcreteDeltaELogic
     {
+        private const double deltaE = 1.5d;
+
+        public IShiftTraceLogger? TraceLogger { get; set; }
+
         public double GetDeltaE()
         {
-            return 1.5d;
+            var message = string.Format("Simple method of calculatinf of effect of eccentricity, DeltaE = {0}, dimensionless", deltaE);
+            TraceLogger?.AddMessage(message);
+            return deltaE;
         }
     }
 }