<input type="text" value="" name="[0].Article" data-val-required="Требуется поле Артикул." data-val="true" class="form-control valid" autocomplete="off">

$(function () {
 $('.add-product').click(function(){
  var i="0";
  $(".product-create-card").each(function () {
  if ($(this).attr("name") > i) 
  { 
   i=$(this).attr("name");
  }
   
  });  
  i++;
  var rerg = new RegExp("[0-9]+");
  $(".product-create-card").last().clone(true)
  .attr('name',(i))
  .appendTo(".products-create-cards")
   .find("input[name^='[']").each(function () {
   
    $(this).val("").removeClass("input-validation-error")
    .attr("name", $(this).attr("name").replace(rerg, i));    
   });
   $(".product-create-card").last()
   .find("select[name^='[']").each(function () {
    $(this).removeClass("input-validation-error")
    .attr("name", $(this).attr("name").replace(rerg, i)); 
    });
    
    //jQuery(".form-inline").validateDestroy();
   jQuery(".form-inline").validate();
   return false;
 
});
});

$(".selector").validate({
  rules: {
    name: "required",
    email: {
      required: true,
      email: true
    }
  }}});

$(".selector").validate({
  rules: {
    [1].Article: "required",
    email: {
      required: true,
      email: true
    }
  }}});